I found a strange problem with these shoes. Two strips of highly abrasive material are used to sew the upper on either side of the ankle. I've found that when I'm wearing shoes, these strips stick to my socks and damage them - tearing the fabric of the socks. I've tried three different pairs of Pegasus 36s and they all have the same issue, so this is a design issue and not a specific issue with the shoes I've tried. Also good shoes, unfortunately can't wear it because it keeps tearing my socks off. In addition, the lack of a soft tongue is another disadvantage.